Methotrexate EP Impurity L CAS 52980-68-4
Purity >95%In StockPharmacopoeial Impurity Standards
| CAS No. | 52980-68-4 |
| Molecular Formula | C13H16N2O5 |
| Molecular Weight | 280.28 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Methotrexate EP Impurity L (CAS 52980-68-4) is a pharmacopoeial impurity standards certified reference material from CATO. Molecular formula: C13H16N2O5. Molecular weight: 280.28 g/mol. ISO 17034 accredited production ensures traceable purity and reliable analytical results.
Physical & Chemical Properties
| Molecular Formula | C13H16N2O5 |
| Molecular Weight | 280.28 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1972 |
| Nitrogen Atoms | 2 |
Related Methotrexate Standards
- Methotrexate Impurity 31 (CAS CATO-C4X-115431)
- Methotrexate Impurity 40 (CAS 94807-78-0)
- Methotrexate Impurity 34 (CAS CATO-C4X-115434)
- Methotrexate Impurity 66 (CAS CATO-C4X-115466)
- Methotrexate Impurity 68 (CAS CATO-C4X-115468)
- Methotrexate Impurity 67 (CAS CATO-C4X-115467)
- Methotrexate Impurity 44 (CAS 93528-16-6)
- Methotrexate Impurity 42 (CAS 79974-19-9)
Recommended Standards
- Olaparib Impurity 14 (CAS 420846-72-6)
- Erlotinib Impurity 29 (CAS CATO-C4X-106929)
- Oxcarbazepine EP Impurity K (CAS 1346601-76-0)
- Relebactam Impurity 22 (CAS CATO-C4X-214422)
- Eperisone impurity 22 (CAS 6281-80-7)
- N-(3-Amino-4-chlorophenyl)-2-[2-(tert-butyl)-phenoxy]acetamide (CAS 1020056-13-6)
- N-cyclopropyl-3-iodopyridin-2-amine (CAS 214074-22-3)
- 2-Chloro-N-(cyclohexylmethyl)pyridin-3-amine (CAS 906371-81-1)
- (1-(2-(((2,6-Dinitro-4-(trifluoromethyl)phenyl)amino)methyl)phenyl)piperidin-4-yl)methanol (CAS 860610-88-4)
- Ginseng Tetrapeptide (CAS 178553-95-2)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 13829788188 / jacky.chen@cato-chem.com